nokia 4a0-m01 practice test
Nokia IP/MPLS Mobile Backhaul Transport
Question 1
When researching carrier-class Ethernet standards to support the mobile backhaul Ethernet
transport, which standards body would you consult?
- A. IEEE
- B. MEF
- C. ITU-T
- D. NGMN
Answer:
B
Question 2
The IETF is known for which standardization effort?
- A. It develops recommendations for core network functionality, broadband service delivery and next generation services
- B. It maintains Requests for Comment (RFC) that describe technical solutions to Internet challenges
- C. It creates single, integrated network design guidelines to support mobile broadband services
- D. It develops radio access services and systems for high capacity mobile networks
Answer:
B
Question 3
Click on the exhibit.
Given the following:
• On the OC-3 port, each provisioned channel group contains all available timeslots. The command
result illustrates which circuit status?
- A. The E1 channel group is administratively turned down
- B. The DS1 circuit physical link is operationally down
- C. The IMA bundle has no operational member links
- D. The associated Layer 3 interface is operationally down
Answer:
B
Question 4
In the Alcatel-Lucent SROS, which command creates the OC-3 path's Administrative Unit (AU)-4
Virtual Container (VC) capacity?
- A. configure port 3/1/2 sonet-sdh path au-4
- B. configure port 3/1/2 sonet-sdh path sts3
- C. configure port 3/1/2 sonet-sdh path tug-3
- D. configure port 3/1/2 sonet-sdh path vc-4
Answer:
B
Question 5
Click on the exhibit.
On the OC-3 port, each provisioned channel group contains all available timeslots. The command
result illustrates which OC-3 port characteristic?
- A. On STS1-1, the second VT1.5 in the second VTG is set for IPCP encapsulation
- B. On STS1-1, the second DS1 channel group in the second VTG is operationally up
- C. On STS1-1, the second E1 channel group in the second TUG-2 is operationally up
- D. On STS1-1, the second VT2 in the second TUG-2 is set for IPCP encapsulation
Answer:
C
Question 6
Which statement correctly describes the Point-to-Point (PPP) Multilink Protocol (MP) negotiation
process?
- A. At least one link must complete Link Control Protocol (LCP) negotiations before the bundle can initialize
- B. The endpoints indicate their desire to implement MP in the link Network Control Protocol (NCP) phase
- C. The bundle must complete LCP negotiations before it can enter the NCP negotiation phase
- D. Internet Protocol-Control Protocol (IPCP) negotiations must succeed for the bundle links to initialize
Answer:
A
Question 7
In the Alcatel-Lucent SROS, which payload type set in a SDH-framed OC-12 port creates individual E1
containers?
- A. Virtual Tributary (VT) 1.5
- B. VT2
- C. Virtual Container (VC)-11
- D. VC-12
Answer:
B
Question 8
Click on the exhibit.
The command result indicates which condition on the Inverse Multiplexing over ATM (IMA) bundle?
- A. The number of active links has dropped below the minimum threshold
- B. The associated Layer 3 interface is administratively down
- C. The remote IMA bundle is administratively down
- D. The parent OC-3 is operationally down
Answer:
C
Question 9
Which timing technique can deliver time of day and phase synchronization information to the base
station without concern for Packet Delay Variation (PDV)?
- A. Building Integrated Timing Supply (BITS)
- B. Global Positioning System (GPS)
- C. Adaptive Clock Recovery (ACR)
- D. IEEE 1588v2/Precision Time Protocol (PTP)
Answer:
B
Question 10
Which messages, periodically sent between an IEEE 1588v2/Precision Time Protocol (PTP) v2 master
and slave, serve as hellos to help the slave choose the best available master?
- A. Announce
- B. Announce_grant
- C. Sync
- D. Delay_response
Answer:
A
Question 11
Click on the exhibit.
Consider the topology and MLS1 configuration shown, and given the following conditions:
• MLS1 delivers the PRC traceable clock to the network
• Reference 1 receives Quality Level (QL) - ST3
• Reference 2 receives QL - DUS
• BITS sets QL-STU
Which quality level will MLS1 deliver to POC2-1 on its Synchronous Ethernet (SyncE) port 1/2/7?
- A. QL-EEC2
- B. QL-PRS
- C. QL-ST3
- D. QL-STU
Answer:
C
Question 12
Click on the exhibit.
Given the show command results shown:
With what IEEE 1588v2/Precision Time Protocol (PTP) v2 message did the slave node set the Unicast
message rates used by the master?
- A. Announce granted
- B. Announce request
- C. Sync granted
- D. Sync request
Answer:
B
Question 13
Which statement best describes adaptive timing techniques?
- A. Adaptive timing calculates the time of day from time stamped packets
- B. Adaptive timing calculates the time of day from the arriving packet rate
- C. Adaptive timing only supports frequency synchronization
- D. Adaptive timing only operates on point-to-point links
Answer:
A
Question 14
If an IEEE 1588v2/Precision Time Protocol (PTP) v2 slave times out announce messages with the
master, to which state does the slave port transition to choose another potential master?
- A. Initial
- B. Listening
- C. Passive
- D. Un-calibrated
Answer:
B
Question 15
Click on the exhibit.
Given the configuration shown and the following conditions:
* The external reference is offline
* Reference 1 receives Quality Level (QL) - EEC1
* Reference 2 receives QL - SSU-A
Which quality level will the SAR router advertise to its Synchronous Ethernet (SyncE) peers?
- A. QL-DNU
- B. QL-EEC1
- C. QL-SSU-A
- D. QL-PRC
- E. QL-UNC
Answer:
B